yesterday both were campaigning in ohio. they are close geographically and may be getting closer in the polls as well. emily schmidt has a look at the swing of support in key state. >> reporter: the prtion election is -- presidential election is less than four weeks away and folks suggesting they can change their mind the candidates must make sure every minute counts. likely ohio viers say 1 in 8 could shift their allegiance. president obama has 41 to 47% lead over romney who had been 7 to 10 points up before the debate. romney gets support from men and obama from women. but the polls shows older voters independent and suburban voters are equally divided. that's a close race having candidates talking ticktock. >> i have been watching the president obama's rallies and they chant four more years four more years i